kitio.aiGrammarly vs Writing.io
A side-by-side look at pricing plans, free tiers, features, pros and cons, updated for 2026. Grammarly starts at $30/mo and Writing.io starts at See pricing page. Check both pricing pages for current plans.
At a glance
Best for
Pricing model
Starting price
Free plan
Made by
Based in
Rating
Key features
- Grammar and spelling checks
- Tone detection
- Full-sentence rewrites
- Plagiarism checker
- Authorship tracking
- GPT, Claude, Gemini and Grok access
- Memory shared across models
- AI document editor
- Project files as context
- 2,500+ AI task templates
- Scheduled automations
| Feature | Grammarly | Writing.io |
|---|---|---|
| Best for | Grammar, tone and rewrite suggestions in almost every app you type in | AI workspace and document editor with GPT, Claude, Gemini and Grok |
| Category | Writing | Writing |
| Pricing model | Freemium | Freemium |
| Starting price | $30/mo | See pricing page |
| Free plan | Yes | Yes |
| Made by | Superhuman Platform Inc. | Writing.io |
| Based in | United States | – |
| Rating | No ratings yet | No ratings yet |
| Key features |
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Pricing compared
Grammarly starts at $30/mo and Writing.io starts at See pricing page. Check both pricing pages for current plans.
Free plan
Cheapest paid plan
Top plan
Free trial
3 plans
Free
Free
- Spelling and grammar checks
- Tone detection
- 100 AI prompts
Pro
$30/mo
- Per member
- Full-sentence rewrites
- Tone adjustments
- Plagiarism and AI detection
Enterprise
Contact sales
- BYOK encryption
- Custom roles and permissions
- Data loss prevention
- Dedicated support
Prices in USD, checked Oct 28, 2026 or later. Plans change often, so confirm on each tool's site before you buy.
Pros and cons
Grammarly
- Works in nearly every app and website
- Free plan catches most basic errors
- Clear explanations for each suggestion
- Best features need the paid plan
- Can flatten a writer's personal style
- English only
Writing.io
- Several top models under one login
- Editor and chat in the same place
- Free to start
- Paid plan prices not shown in the evidence
- Broad scope can feel crowded
- Courses and upsells mixed into the product
Which one should you choose?
Choose Grammarly if you want:
- Works in nearly every app and website
- Free plan catches most basic errors
- Clear explanations for each suggestion
Watch out: best features need the paid plan.
Choose Writing.io if you want:
- Several top models under one login
- Editor and chat in the same place
- Free to start
Watch out: paid plan prices not shown in the evidence.
Grammarly vs Writing.io FAQ
What is the difference between Grammarly and Writing.io?
Grammarly: Grammar, tone and rewrite suggestions in almost every app you type in. Writing.io: AI workspace and document editor with GPT, Claude, Gemini and Grok. Both are writing tools.
Is Grammarly or Writing.io cheaper?
Grammarly starts at $30/mo and Writing.io starts at See pricing page. Check both pricing pages for current plans.
Do Grammarly and Writing.io have free plans?
Grammarly: Yes. Writing.io: Yes.
Who makes Grammarly?
Grammarly is made by Superhuman Platform Inc., based in United States.
Who makes Writing.io?
Writing.io is made by Writing.io.
Which should I choose, Grammarly or Writing.io?
Choose Grammarly if you value works in nearly every app and website and free plan catches most basic errors. Choose Writing.io if you value several top models under one login and editor and chat in the same place.